The sign_____is often found in a reading

问题选择题

The sign_____is often found in a reading-room or a library.

A．NO PHOTOS

B．KEEP QUIET

C．THIS SIDE UP

D．OPEN

答案

答案：B

此题重点考查四个短语的区别。NO PHOTOS表示禁止拍照。KEEP QUIET表示保持安静。THIS SIDE UP表示此面向上，OPEN表示开门。根据题意可知选择B。